baber/WOPTO huggingface dataset:
Patent GB-531038-A (GB)
Title: Improvements in and relating to electromagnetic thickness gauges
IPC: G01B7/06
Filed: 1939-07-10
Abstract: 531,038. Electromagnetic gauges. BRITISH THOMSON-HOUSTON CO., Ltd. July 10, 1939, No. 20066. Convention date, July 9, 1938. [Class 37] A modification of the thickness gauge for metal foils or wire described in Specification 505,132 comprises a magnetic core 15 having branches 19, 20 forming parallel magnetic circuits, an exciting winding 30, an air gap 26 for the passage of the foil 29, and detecting windings 33, 34 connected in series across an impedance 41 having an adjustable tap 47. The windings 33, 34 are differentially connected to the input terminals of a rectifier 36, the output circuit of which includes a milliammeter 35. In order that current shall flow in the rectifier 36 for a zero reading of the instrument 35, an opposing current is supplied to the instrument from a transformer 38 through a rectifier 37 and may be adjusted by a rheostat 40. A sheet of standard thickness is inserted in the gap 26 and zero reading on the instrument 35 is obtained by adjusting the tap 47. To provide coarse and fine adjustment an intermediate potentiometer 46 is arranged to be movable as a unit along the resistance 41, the tapping 47 giving the fine adjustment. The current supply 31 is preferably of audio frequency. A rheostat 32 serves to check the sensitivity of the apparatus. A relay 48 may control the operation of a foil-rolling mill. In a modified circuit the coils 33, 34 are connected so as to aid one another, instead of in opposition, the rectifier 36 being connected between the tap 47 and the junction 44 of the coils 33, 34. The gauge may also be employed for the measurement of conductivity or of purity of metallic sheets or wires of uniform thickness.
Patent GB-175576-A (GB)
Title: Improvements relating to metal barrels or cans
IPC: B65D8/08
Filed: 1921-07-26
Abstract: 175,576. Schmid, J. J. July 26, 1921. Ends, foot-rings, and binding-hoops.-Metal cans, particularly of the kind in which the ends are secured to the sides by autogenous welding, are fitted with reinforcing rings shaped as shown. The rings are driven hot over the ends and after cooling the metal of the barrel is forced into the substantially rectangular recess g either continuously all around the end of the can by means of a milling cutter as in Fig 1, or, where the can is of thicker metal as in Fig. 2, indentations k are forced into the recess at intervals.
Patent GB-299520-A (GB)
Title: Improvements in or relating to stencil sheets
IPC: C02F1/52
Filed: 1927-07-29
Abstract: 299,520. Horii, S. July 29, 1927. Pulp, preparation of.-Japanese stencil paper for use in the production of stencil sheets for use on duplicating-machines is made by subjecting the bast tissue to the wet beating process until the degree of wetness reaches 40 to 60 beating units by the Schoper-Riegler beating tester. The finished paper is coated in the usual way with a coating-composition comprising waxes, gelatine, or cellulose esters combined with tempering-agents. In one example, the bast tissue is beaten wfith a wooden hammer for about five hours, and, in a second example, the tissue is subjected to free beating in a beating-engine for about twenty minutes followed by wet beating for about five hours.
Patent GB-292797-A (GB)
Title: Improvements in hoeing and sowing machines
IPC: A01C7/08
Filed: 1927-07-29
Abstract: 292,797. Frank, N. S. July 29, 1927. Seed drills; implements with adjustable tool frames; disc-tool implements; frames; adjusting parts.-A machine for use for hoeing or sowing comprises a wheeled frame having carrier arms adjustable about the wheel axle and adapted to support either wheeled supports for seed tubes or a laterally adjustable hoe frame. The carrier arms 5 are adjustable with or about the axle 2. They may be adjustable independently by means of perforated supporting-bars 9 and screws and nuts 12. Each arm carries a perforated plate 7 pivoted on a horizontal pin 6. For sowing seeds, a plate 15 carrying hoppers 14 is placed across the frame 4. A feeding-shaft 23 passing through both hoppers is fitted with actuating levers 24 cooperating with tappets 22 on rings mounted on the wheels 1. The seed tubes 16 are supported by bars 17 provided with wheels 18 and connected to a bar 19 which is connected by bars 20 and screws 13 to the arms 5. For hoeing, a frame carrying shares and discs and provided with a handle is connected by pivoted bars to the plates 7, the securing screws being placed in any of the apertures 8 in the plates 7.
Patent GB-148246-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M25/022
Filed: 1920-07-09
Abstract: 148,246. Soc. Anon. Le Carburateur Super. July 28, 1919, [Convention date]. Addition to 129,963. Void [Published under Sect. 91 of the Act]. Vaporizers, external.-In the carburettor described in the parent Specification, a heavy-fuel mixture, after passing through an exhaust-heated vaporizer, is mixed with steam partly decomposed by passing through a chamber containing heated carbon, and is delivered to a T-shaped pipe which communicates respectively with the engine and with a petrol carburettor for starting; the main throttle valve may be connected to the throttle valve of the petrol carburettor, and, when running on heavy fuel, the petrol carburettor may act as a secondary air inlet. According to the present invention : (1) The petrol carburettor may be replaced by a sprayer comprising a body E, Fig. 1, communicating with a petrol tank and with the inlet pipe below the main throttle valve, and a valve B provided with an air passage A and a petrol passage E provided with a calibrated hole or slot D forming a sprayer. The valve B. which may be interconnected with the throttle valve, is held closed by a spring when the engine is running on heavy fuel. (2) The water supplied to the inlet B<1>, Fig. 2. of the retort containing the carbon may be controlled by a tapered or conical-ended rod T operated by a cam C<1> on the spindle of one of the secondary air throttles. (3) The water may be supplied by a float chamber, Fig. 3, mounted beneath the chamber containing the carbon, and provided with a water inlet D' and an outlet L provided with a calibrated orifice G. (4) In addition to the water supplied to the chamber containing the carbon, a water inlet may be provided on the inlet pipe, e.g. between the two throttle valves. (5) To allow of direct starting on heavy fuel, the vaporizer mav be heated by a flame from a heavy-fuel burner H, Fig. 4, which projects a flame through a door I on the exhaust pipe adjacent the vaporizer.
Patent GB-457322-A (GB)
Title: Multi-cylinder fuel injection pump for internal combustion engines
IPC: F02M59/26
Filed: 1936-07-21
Abstract: 457,322. Fuel - injection pumps. SCINTILLA, Ltd., Soleure, Switzerland. July 21, 1936, No. 20181. Convention date, July 21, 1935. [Class 102 (i)] In a multi-cylinder fuel-injection pump, of the type in which the plungers or plunger valves b are rotatable by means of a rack l and pinions n in order to vary the amount of fuel injected, the rack and pinions are formed with inclined teeth and the pinions are arranged to be displaceable axially, so that seizing of a plunger does not prevent operation of the rack. The plungers are formed with helical edges h, which control the suction ports i, and with grooves k, which co-operate with the discharge ports. The pinions are rotatable and movable axially on bosses q on the body a, and are pressed axially by the plunger return springs g.
Patent GB-992562-A (GB)
Title: Process for dyeing polyolefins
IPC: C09B45/00
Filed: 1963-05-21
Abstract: Solid polymers of a -olefins having 2-3 carbon atoms containing a Werner-complex-forming metal are dyed with an aqueous acidic dispersion of a water-insoluble monoazo dyestuff which contains at least one group capable of forming a metal chelate with said metal. The specified metals are Ni, Cr, Co, Zn, Ti, Al, Fe, Cu, Zr, Mn, Cd and V; they may be present in the form of organic or inorganic compounds a few of which are referred to.  Many suitable dyes are listed having a variety of metallizable groups, e.g. o-hydroxy-o1-carboxyazo, o, o1-dihydroxyazo groups as well as groups not associated with the azo linkage such as those derived from salicylic acid and salicylaldehyde.  The aqueous dispersions may containing anionic, cationic or especially non-ionic surfactants and preferably have a pH of less than 5.  An effective mode of preparing the aqueous dispersion comprises dissolving the dye in a water-miscible polyhydric alcohol or p  ether, adding a surfactant and water with agitation whereby a neutral aqueous dispersion is obtained.  The metal may be incorporated in the polymer prior to spinning into fibres or a like operation and it may be applied as a solution or dispersion of the metal compound prior to dyeing. Amounts of 0.01-0.5% of metal are preferred.  Examples of dyeing fibres of isotactic polypropylene are given.  Specification 992,561 is referred to.
Patent GB-205882-A (GB)
Title: Improvements in or relating to vehicle wheel hubs
IPC: B60B3/18
Filed: 1922-07-25
Abstract: 205,882. Pugh, J. V., and Rudge- Whitworth, Ltd. July 25, 1922. Detaching from, and attaching to, permanent hubs.-A detachable wheel hub construction of the type in which the inner end of the outer hub is enlarged to enclose the brake-drum or driving gear or to accommodate the steering pivot in the mid plane of the wheel, is adapted to provide a sufficient driving connection between the inner and outer tubes without unduly increasing their width, by dishing the inner ends of the tubes a, c in opposite directions and disposing them with their concave faces adjacent so as to transmit the axial thrust of the nut d to two coned surfaces e, f and produce a frictional driving contact between them, and by providing the outer hub with an extended bush j which has positive driving engagement with the inner hub. The bush j is enlarged at its outer end j<1> to fit accurately in the hub a and is secured by the outer row of spokes. An additional bearing is given by a flange j<3> which may be at the inner end of the bush or at an intermediate point.
Patent GB-740886-A (GB)
Title: Improvements in or relating to the production of polymers from aromatic compounds
Inventor: SZWARC MICHAEL MOJZESZ
IPC: C08G61/00
Filed: 1951-08-29
Abstract: In the production of polymers by the processes described in Specifications 650,947, 673,651, 673,652 and 718,106, the pyrolysis is carried out in the presence of steam.  The pressure of the mixture of steam and vapour should not exceed 200 mm. Hg absolute. Superheated steam may be used to supply part of the heat required for pyrolysis.  Examples describe pyrolysing (1), (6) and (7) p-xylene, (2) chloro-p-xylene, (3) 2,5-dimethyl pyrazine, (4) pseudocumene, (5) a mixture of p-xylene and pseudocumene, washing the cooled deposited spongy product with acetone, ether or benzene and drying to form flakes.
Patent GB-597015-A (GB)
Title: Improvements relating to the bleaching of flour
IPC: A21D2/02
Filed: 1945-08-08
Abstract: <PICT:0597015/III/1> A bleaching agent for flour containing nitrogen peroxide is obtained by blowing air through an electric arc and mixing cold air with the mixture of hot air and gases coming from the arc. Air is fed from a compressor a to a nozzle b and through an arc formed between electrodes k, and a pipe f feeds air through a needle valve g to a jet nozzle h coaxial with a venturi outlet from the arcing chamber.
Patent GB-356366-A (GB)
Title: Improvements relating to the combustion of vaporized fuel in internal combustion engines
IPC: F02B19/12
Filed: 1930-07-04
Abstract: 356,366. Cylinders. NORTH, O. D., 76, Elm Park Mansions, Park Walk, Chelsea, HUGH, P. G., 52, High Holborn, both in London, and BAKER, H. T., Tolpits Lane, Watford West, Hertfordshire. July 4, 1930, No. 20368. [Class 7 (ii).] In an engine supplied with combustible mixture, the sparking plug or other ignition device 4, Fig. 3, is located at one end of a pocket 5 which communicates with the combustion chamber 6 through a narrow passage 7. The ignition device may be arranged on a diameter of the cylinder head at rightangles to the diameter passing through the inlet and exhaust ports. When two ignition devices are used the axes of the passages 7, Fig. 5, are arranged to meet at the bottom of a cavity in the piston when it is nearest the cylinder head.
Patent GB-722560-A (GB)
Title: Improvements in or relating to high voltage electrical transformers
IPC: H01F27/245
Filed: 1952-08-13
Abstract: 722,560. Transformers. MICAFIL, Ltd. Aug. 13, 1952 [Aug. 13, 1951], No. 20374/52. Class 38 (2). A core suitable for a high voltage transformer comprises layers of mutually separated ferromagnetic plates, the layer being separated by insulating sheets D of hard paper, pressboard, oil-saturated paper, mica or moulded resin. The plates in adjacent layers are staggered, the flux flowing in paths indicated by chain dotted lines. The core thus forms a non-conducting structure to which the coils of the high voltage winding may be connected so that there is little potential difference between the winding and the core, only thin insulation being needed. Connection is made by bolts holding the plates together, some of which are not insulated and connect together plates in alternate layers similarly placed with respect to the magnetic and electric fields. The core may form a capactive load reducing the magnetizing current. The primary winding may be located at one end of the core, a tertiary winding connected to a capacitor may provide phase compensation and improved flux distribution. A cylindrical core may have transverse yokes at each end to improve the return flow of flux through the air. The magnetic elements may be in the form of wires.
Patent GB-497106-A (GB)
Title: Improvements in and relating to knitting machines
IPC: D04B15/66
Filed: 1937-07-23
Abstract: 497,106. Photo-electric control of knitting - machines and looms. FISHER, G., TANDLER, W. S., and CARLISLE, R. W. July 23, 1937, No. 20412. Convention date, July 23, 1936. [Class 40 (iii)] [Also in Groups VIII and IX] The needles or other knitting-parts of a knitting-machine are electrically controlled by means comprising a pattern drum 30 scanning means therefor and an electromagnet operating directly upon selector jacks in line with the needles or knitting-parts. In one form, Fig. 3, light from a lamp 75a or 75b is focused upon the pattern 32, and is reflected into passages 82a, 82b and thence to a photoelectric cell 74. In each form, an electric current is set up in circuits 107, 109, 110 which current actuates a control device 27 comprising an electromagnetically operated lever 28. The lever 28 moves selector jacks 24 inwardly so that they miss a raising cam 26, and the corresponding needles 22 or knitting-parts are not raised. The pattern is in two parts 29a, 29b so arranged that, by using two lamps 75a, 75b, and providing means for bringing the lamps alternatively into operation upon change of direction of movement of the support 33 for the lamps, the pattern produced is continuous. The support 33 is slidably mounted upon rods 34 and carries a split nut 43 which can be brought into engagement with either of two oppositely rotating screws 38a, 38b. The shifting of the nut 43 at the end of each stroke of the support 33 may be effected by electromagnet and relays or by mechanical means. In the form shown in Fig. 3, the lamps 75a 75b are rendered inoperative by rotating mirrors 83a, 83b. A scale 147 may be provided upon the pattern drum support together with pointers 149a, 149b movable with the support 33 for indicating the progress of the patterning. Specification 357,132, [Group VIII], is referred to. The Specification as open to inspection under Sect. 91 states that the invention may be applied to looms and to machines for punching Jacquard cards. This statement does not appear in the Specification as accepted.
Patent GB-869482-A (GB)
Title: A process for grafting olefins on to organosilicon compounds
IPC: C08F283/12
Filed: 1959-06-15
Abstract: Olefinic compounds are grafted on to organosilicon compounds by (1) contacting an organosilicon compound in which at least 0,001 mol per cent of the Si atoms have unsaturated non-aromatic hydrocarbon radicals bonded thereto by C-Si linkages, any remaining valencies of the Si atoms being satisfied by saturated hydrocarbon or halohydrocarbon radicals, oxygen atoms of a Si-O-Si linkage, halogen atoms or OR groups in which R is a saturated hydrocarbon or halohydrocarbon radical, with ozone at a temperature not greater than 30 DEG C., and (2) thereafter contacting the treated organosilicon compound with an olefinic compound having a terminal group of the formula:  <FORM:0869482/IV (a)/1> in which X is H or a halogen atom, the olefinic compound containing less than 12 C atoms per molecule and being an ester, acid, hydrocarbon, halohydrocarbon, ether, thioether, amide, nitrile, ketone or aldehyde, at a temperature above 30 DEG C.  The organosilicon compound may be in the form of a liquid, resin or p  rubber and may be a silane, siloxane or silcarbane. Numerous examples of reactants are given.  The reaction may be effected in a solvent, e.g. carbon tetrachloride, perchloroethane and liquid siloxanes containing saturated hydrocarbon radicals.  After grafting is complete any Si-bonded hydrolysable radicals can be removed if desired by hydrolysing with water.  The compounds can be further modified by incorporating in the reactive olefins, olefins having the insaturated linkage in a non-terminal position, e.g. maleic acid and anhydride, crotonic acid and oleic acid and their esters, nitriles, amides and aldehydes, and ethylidene acetone and mesityl oxide; these olefins do not graft to the organosilicon compounds but form co-grafts with the terminally unsaturated olefins during the reaction.  In typical Examples (1) a dimethylsiloxane-methylvinylsiloxane copolymeric gum was mixed with fume silica and a liquid hydroxylated dimethylsiloxane and pressed into a sheet which was then subjected to oxygen containing ozone at 25 DEG C.  The sample was then immersed in monomeric acrylonitrile at room temperature for 0,86 hour, heated to reflux for 4,8 hours and then removed, dried and freed from unreacted acrylonitrile by boiling with dimethylformamide and finally freed from low molecular weight siloxanes by extraction with toluene; (5) ozone was passed through a solution (cooled to -16 DEG C.) of a dimethylsiloxane-methylvinylsiloxane gum in hexamethyldisiloxane. After purging with nitrogen the solution was mixed with vinyl chloride and additional hexamethyldisiloxane, heated in a bomb, then cooled and freed from solvent.
Patent GB-792750-A (GB)
Title: Improvements in or relating to new copolymers
IPC: C08F230/08
Filed: 1955-07-15
Abstract: Copolymers of a cyclopentadienyl trichlorosilane of the formula: <FORM:0792750/IV (a)/1> where R represents hydrogen or an organic radical, and an olefinic hydrocarbon are made by polymerizing a mixture of the monomers in the presence of a Friedel-Crafts catalyst dissolved in a non-complex-forming low-freezing point solvent at a temperature between -10 DEG  and -164 DEG  C.  The olefinic hydrocarbon may be styrene, isobutylene, butadiene, or isoprene. Solvents mentioned are ethyl and methyl chloride, ethylene dichloride, chloroform, carbon disulphide, ethylidene fluoride, liquid ethylene, ethane, propane and butane.  The copolymers may be compounded with carbon black and cross-linked, if desired, by heat-treatment.  The copolymer may be used as an adhesive.
Patent GB-501445-A (GB)
Title: Improvements in or relating to lagging jackets for domestic hot water cylinders
IPC: B65D81/38
Filed: 1937-07-26
Abstract: 501,445. Nonconducting-coverings for heat. ELASTAFELT, Ltd., BRUNDRETT, H., and PURVES, H. H. July' 26, 1937, No. 20580 [Class 64 (ii)] In a two-piece padded fabric lagging jacket for hot-water cylinders and tanks comprising a body part a and a cap g, the peripheral flange of. the cap overhanging the main part of the jacket is provided with an elastic cord i. The padding of the cap terminates some distance above the elastic cord. The upper edge of the body part of the jacket is constructed with a bead over which the cap extension is secured. The cap may be independently removed for airing purposes ; additional surface may be exposed by turning down a panel m normally closed by press fasteners o and zip fasteners u. The parts of the jacket may be fastened by the usual hooks and eyes or by lacing.
Patent GB-789791-A (GB)
Title: Improvements in hydroforming
IPC: B01J23/96
Filed: 1956-07-03
Abstract: In a process for hydroforming naphthas in the presence of added hydrogen using a catalyst containing a platinum-group metal, the catalyst is regenerated by periodically treating with a hydrogen-containing gas also containing a halogen at a temperature below hydroforming temperatures.  The hydrogen-containing gas, which is preferably recycle gas from the hydroforming process containing 65-95 per cent by volume of hydrogen, preferably contains 0.5 to 2.0 per cent by volume of halogen, preferably chlorine, and is contacted with the catalyst at a temperature of 600-800 DEG  F.  The metal catalyst is preferably platinum, is supported on a carrier such as eta-alumina, and also preferably contains a small amount of a halogen such as chlorine.  The naphtha is hydroformed at elevated pressures and temperatures of 900-965 DEG  F., and the oil flow discontinued during the catalyst regeneration, which will normally be necessary after 4-6 weeks of operation.  As hydroforming is continued the catalyst declines in activity and the operating temperature is raised accordingly so that a uniform product is obtained.  In an example a naphtha is hydroformed in four reactors in series at 930 DEG  F, 400 p.s.i.g., at a W.H.S.U. of 1.01 lbs. of oil/hr./lb. of catalyst in each reactor, in the presence of 6000 S.C.F. of a hydrogen-containing gas (86.0 mol. per cent hydrogen) per U.S. barrel of oil and a catalyst containing by weight 98.65 per cent alumina, 0.6 per cent platinum and 0.75 per cent chlorine.  The reactivation was carried out with the same hydrogen-containing gas to which was added 1 per cent by volume of chlorine, at 800 DEG  F. for 1 hour.ALSO:In a process for hydroforming naphthas in the presence of hydrogen and a catalyst containing a platinum-group metal, the catalyst is regenerated by periodically treating with a hydrogen-containing gas also containing a halogen at a temperature below hydroforming temperatures.  The regenerating gas is preferably recycle gas from the hydroforming process containing 65-95 volume per cent of hydrogen to which is added 0.5-2 volume per cent of halogen, preferably chlorine, and is contacted with the catalyst at 600-800 DEG  F.  The catalysts is preferably platinum supported on eta-alumina and contains a small amount of halogen preferably chlorine.  The naphtha is hydroformed at 900-965 DEG  F. and the oil flow is discontinued during the catalyst regeneration which will normally be necessary after 4-6 weeks operating.  As the catalyst declines in activity the operating temperature is raised so that a uniform product is obtained.  In an example a naphtha is hydroformed in the presence of a gas containing 86 mol. per cent hydrogen over a catalyst containing by weight, 98.65 per cent alumina, 0.6 per cent platinum, and 0.75 per cent chlorine. Reactivation was carried out with the same hydrogen-containing gas, to which 1 volume per cent of chlorine was added, at 800 DEG  F. for 1 hour.